ISO 10355:2004

Mopeds - Positioning of lighting and light-signalling devices

ISO 10355:2004 specifies the requirements for the positioning of lighting and light-signalling devices when fitted to a moped, as defined in ISO 3833. It does not specify the installation of any of these devices.

Cyclomoteurs — Position des dispositifs d'éclairage et de signalisation lumineuse

General Information

• Status: Published
• Publication Date: 29-Sep-2004
• ICS: 43.140 - Motorcycles and mopeds
• Technical Committee: ISO/TC 22/SC 38 - Motorcycles and mopeds
• Drafting Committee: ISO/TC 22/SC 38 - Motorcycles and mopeds
• Current Stage: 9093 - International Standard confirmed
• Start Date: 09-Dec-2021
• Completion Date: 13-Dec-2025

Relations

• Consolidated By: ISO 17076-1:2012 - Leather - Determination of abrasion resistance - Part 1: Taber method
• Effective Date: 06-Jun-2022
• Revises: ISO 10355:1994 - Mopeds - Positioning of lighting and light-signalling devices
• Effective Date: 15-Apr-2008

Overview

ISO 10355:2004 - Mopeds: Positioning of lighting and light-signalling devices specifies where lighting and light‑signalling devices must be positioned on a moped (as defined in ISO 3833). The standard covers location, orientation and symmetry requirements for lamps and reflex‑reflecting devices but does not cover installation methods or electrical/electronic requirements. It is a positional standard intended to ensure visibility, consistency and safety of moped lighting.

Key topics and technical requirements

• Scope & references: Applies to lighting and light‑signalling devices fitted to mopeds; normative references include ISO 3833, ISO 6726 and ISO 7227.
• General rules
  • Lamp reference axis must be parallel to the vehicle bearing plane; tolerance ±3°.
  • Positioning checks are made on an unladen vehicle on a flat surface with handlebars straight.
  • Paired lamps must be mounted symmetrically around the median longitudinal plane unless manufacturer instructions state otherwise.
  • Lamps may be grouped or combined provided each function meets its specific positional requirements.
• Specific device requirements (selected values from the standard)
  • Driving/main‑beam and passing/dipped‑beam headlamp pairs: reference centres must be symmetrical; maximum separation between any two headlamps is 200 mm.
  • Passing/dipped‑beam height: 500–1 200 mm above ground.
  • Front position lamp height: 350–1 200 mm above ground.
  • Front reflex‑reflector height: 400–1 200 mm; must face forward.
  • Side reflex‑reflector height: 300–1 000 mm and oriented perpendicular to median plane.
  • Rear reflex‑reflector height: 250–900 mm; single rear reflector must be on the median plane.
  • Direction indicators: front indicator pair separation ≥ 240 mm, rear pair separation ≥ 160 mm; indicator height 350–1 200 mm. Tabled minimum separation distances relate to indicator intensity (e.g., 90 cd → 75 mm).
  • Stop and rear position lamps: height 250–1 500 mm; must face rearward.
• Orientation: Many front lamps may move with steering; reflex devices and position lamps have directionality requirements (face forward or rearward).

Applications and users

ISO 10355:2004 is used by:

• Moped and small‑vehicle manufacturers and designers for lamp layout and body design.
• Type‑approval, homologation and regulatory bodies assessing compliance of lighting positioning.
• Test laboratories verifying positional conformance (height, symmetry, separation).
• Standards committees and engineering teams aligning product design with international vehicle lighting rules.

Practical benefits include improved road visibility, harmonized design for safety, and clearer guidance for type approval of mopeds.

Related standards

• ISO 3833 - Road vehicles: terms and definitions (moped definition)
• ISO 6726 - Mopeds and motorcycles: masses vocabulary
• ISO 7227 - Road vehicles: lighting and light‑signalling vocabulary

Keywords: ISO 10355:2004, mopeds lighting positioning, moped headlamp position, light‑signalling devices, direction indicators, reflex reflectors, vehicle lighting standard.

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 10355
Second edition
2004-10-01
Mopeds — Positioning of lighting and
light-signalling devices
Cyclomoteurs — Position des dispositifs d'éclairage et de signalisation
lumineuse
Reference number
©
ISO 2004
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ii © ISO 2004 – All rights reserved

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 10355 was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 23, Mopeds.
This second edition cancels and replaces the first edition (ISO 10355:1994), which has been technically
revised.
INTERNATIONAL STANDARD ISO 10355:2004(E)

Mopeds — Positioning of lighting and light-signalling devices
1 Scope
This International Standard specifies the requirements for the positioning of lighting and light-signalling
devices when fitted to a moped, as defined in ISO 3833. It does not specify the installation of any of these
devices.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 3833, Road vehicles — Types — Terms and definitions
ISO 6726, Mopeds and motorcycles with two wheels — Masses — Vocabulary
ISO 7227:1987, Road vehicles — Lighting and light signalling devices — Vocabulary
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 6726 and ISO 7227 and the
following apply.
3.1
transverse plane
vertical plane perpendicular to the median longitudinal plane of the vehicle
3.2
front position lamp
lamp used to indicate the presence of the vehicle when it is viewed from the front
NOTE Adapted from ISO 7227:1987.
3.3
rear position lamp
lamp used to indicate the presence of the vehicle when it is viewed from the rear
NOTE Adapted from ISO 7227:1987.
3.4
illuminating surface of reflex-reflecting device
illuminating surface of a reflex-reflecting device in a plane perpendicular to the reference axis and bounded by
planes on the outer edges of the reflex-reflecting device light projection surface and parallel to this axis
NOTE Adapted from ISO 7227:1987.
3.5
separation distance
distance separating two lamps facing in the same direction, between the orthogonal projections in a plane
perpendicular to the reference axes of the outlines of the two illuminating surfaces
NOTE For the full terms and definitions of the illuminating surfaces concerned, see ISO 7227:1987, 3.35 and 3.36.
4 General requirements
4.1 For all light-signalling devices, including those mounted on the side, the reference axis of the lamp
when fitted to the vehicle shall be parallel to the bearing plane of the vehicle on the road. In addition, it shall
be perpendicular to the longitudinal median plane of the vehicle in the case of side reflex-reflecting devices,
and parallel to that plane in the case of all other devices.
A tolerance of ± 3° is allowed in each direction.
In addition, if specifications for fitting are provided by the manufacturer, they shall be met.
4.2 In the absence of specific instructions, the height and orientation of the lamp shall be verified with the
vehicle unladen and placed on a flat horizontal surface, with its median longitudinal plane vertical and the
handlebars in the position corresponding to straight ahead.
4.3 In the absence of specific instructions, lamps constituting a pair and having the same function shall
a) be mounted symmetrically in relation to the median longitudinal plane, and
b) be symmetrical to one another in relation to the median longitudinal plane.
4.4 In the absence of specific instructions, lamps having different functions may be independent, or
grouped, combined or incorporated in one device, on condition that each lamp satisfies the specific
requirements applicable to it.
4.5 The maximum height above ground shall be measured from the highest point and the minimum height
from the lowest point of the illuminating surface.
4.6 This International Standard defines the positions of the following lighting and light-signalling devices:
 driving/main-beam headlamp (see 5.1);
 passing/dipped-beam headlamp (see 5.2);
 front position lamp (see 5.3);
 front reflex-reflecting device (see 5.4);
 side reflex-reflecting device (see 5.5);
 pedal reflex-reflecting device (see 5.6);
 rear reflex-reflecting device (see 5.7);
 direction indicator lamp (see 5.8);
 stop lamp (see 5.9);
 rear position lamp (see 5.10).
2 © ISO 2004 – All rights reserved

4.7 If fitted, the positioning of each of the lighting and light-signalling devices given in 4.6 shall be effected
in conformity with the relevant requirements given in each subclause.
5 Specific requirements
5.1 Driving/main-beam headlamp
5.1.1 Position
5.1.1.1 A driving/main-beam headlamp may be either independent or reciprocally incorporated with
another front lamp.
5.1.1.2 In the case of a moped equipped with an independent driving/main-beam headlamp, it may be
fitted either above or below, or on either side of another front lamp.
If these lamps are one above the other, the reference centre of the driving/main-beam headlamp shall be
located in the median longitudinal plane of the vehicle.
If these lamps are side by side, their reference centres shall be symmetrical in relation to the median
longitudinal plane of the vehicle.
5.1.1.3 In the case of a moped equipped with a driving/main-beam headlamp that is reciprocally
incorporated with another front lamp, it shall be fitted in such a way that its reference centre lies in the median
longitudinal plane of the vehicle.
However, when the vehicle is also fitted with an independent passing/dipped-beam headlamp or a
passing/dipped-beam headlamp that is reciprocally incorporated with a front position lamp alongside the
driving/main-beam headlamp, their reference centres shall be symmetrical in relation to the median
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